基于任意相位延时的单相整流器dq轴电流快速计算方法  

A Fast d-q Axis Current Calculation Algorithm for Single-phase Rectifiers Based on Any Phase-delay Method

作　　者：张呈象 葛兴来[1] 马俊鹏[1] 韩旭东[1] 

机构地区：[1]磁浮技术与磁浮列车教育部重点实验室(西南交通大学电气工程学院),四川省成都市610031

出　　处：《中国电机工程学报》2017年第21期6400-6409,共10页Proceedings of the CSEE

基　　金：国家自然科学基金资助项目(51677156)~~

摘　　要：以单相两电平脉冲整流器为研究对象,以提高其dq电流解耦控制的动态性能为目的,针对传统dq轴电流计算速度缓慢的问题,提出一种新的dq轴电流计算方法。首先,引入两相坐标系下空间复矢量的概念,建立整流器在dq坐标系下的数学模型,分析dq电流解耦控制的基本原理;然后,针对单相系统αβ-dq坐标转换需要引入虚拟正交分量问题,提出一种任意相位延时算法,并分析该算法的响应速度与抗噪声干扰能力,该算法与目前几种常用的正交信号产生(orthogonal signal generators,OSG)算法相比具有更快的响应速度,且无需复杂计算、实现简单容易;最后对所提出的算法结合单相整流器dq电流解耦控制进行计算机仿真与半实物实验验证,同时与几种常见OSG算法做对比实验,结果证明了所提算法的正确性与有效性。In order to improve the controller＇s dynamic response of single-phase two-level pulse rectifiers, this paper presented a new way to realize the calculation of d-q axis currents. First of all, the mathematic model of the single-phase two-level pulse rectifier in the d-q axis synchronous rotating reference frame was analyzed by the complex space vector in a two phase coordinate system. And the d-q current decoupling control schemes were also illustrated. For the implementation of rotational coordinate transformation in single-phase applications, a novel method was proposed to generate the required virtual orthogonal signals from the original single-phase signal. Meanwhile, the response speed and anti-noise ability of the proposed algorithm were analyzed. Compared with other common OSG methods, the proposed method brings the following benefits： such as the faster response speed, easy implementation and less computational burden. Finally, the proposed OSG algorithm and the traditional algorithm were compared and verified by computer simulations and hardware-in-loop experimental tests. Simulation and experimental results show the feasibility and effectiveness of the proposed algorithm.

关 键 词：单相两电平脉冲整流器 dq电流解耦控制 动态 性能 空间复矢量 坐标变换 正交信号生成算法 

分 类 号：TM46[电气工程—电器]